12668475623 has 16 divisors (see below), whose sum is σ = 13238834400. Its totient is φ = 12107249280.

The previous prime is 12668475571. The next prime is 12668475637. The reversal of 12668475623 is 32657486621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12668475623 - 2⁸ = 12668475367 is a prime.

It is a super-2 number, since 2×12668475623² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668471623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5723465 + ... + 5725677.

It is an arithmetic number, because the mean of its divisors is an integer number (827427150).

Almost surely, 2^12668475623 is an apocalyptic number.

12668475623 is a deficient number, since it is larger than the sum of its proper divisors (570358777).

12668475623 is a wasteful number, since it uses less digits than its factorization.

12668475623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162.

The product of its digits is 2903040, while the sum is 50.

The spelling of 12668475623 in words is "twelve billion, six hundred sixty-eight million, four hundred seventy-five thousand, six hundred twenty-three".